This work investigates the secrecy performance of a dual-uncrewed aerial vehicle (UAV)-assisted secure ISAC system, and maximizes the average secrecy rate by optimizing user scheduling strategies, time allocation, transmit power, and UAV trajectories.
Covert Communication (CC) has emerged as a vital paradigm for 6G security, offering protection against eavesdropping without sole reliance on upper-layer encryption. Using their strong mobility and flexible deployment, Unmanned Aerial Vehicles (UAVs) can serve as the ideal platforms for CC. However, UAV mobility and mu...
—This paper studies covert communications in the presence of an unmanned aerial vehicle (UAV) acting as an aerial warden, where a terrestrial transmitter communicates with a legitimate terrestrial receiver under ground interference. To enhance transmission reliability, the legitimate receiver employs a fluid antenna (F...
Symbiotic radio owing to its open characteristics, poses a substantial threat to system security. With the integration of unmanned aerial vehicle (UAV) technology, the challenges to enhancing the security performance of such systems become even more severe. This article first propose a covert communication enhancement...
This paper investigates an air-to-ground two phase covert transmission (AtG-TPCT) system, which is associated with an unmanned aerial vehicle transmitter Alice (UAV-A), a fullduplex UAV relay (UAV-R) and multiple uncertainly located wardens. Accordingly, given the bounded location uncertainty of wardens, we formulate a...
Covert communication in space-air-ground integrated networks (SAGINs) faces severe challenges due to aerial platform mobility and the impracticality of acquiring instantaneous channel state information (CSI). To address this, we investigate a multi-cell SAGIN architecture where mobile unmanned aerial vehicle (UAV) rela...
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